Insole for a high-heeled shoe

ABSTRACT

The present insole for a high-heeled shoe has reduced friction in the direction of a contact force from toe to heel and increased friction in the direction of a contact force from heel to toe. The insole is made of a flexible material and has disposed thereon a plurality of protruding elements, which are inclined from toe to heel. The protruding elements can be in the form of: filaments, bristles, burrs, scales, serrations, ribs, etc.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present patent application is a national stage application from PCT application PCT/RU2016/000471 filed Jul. 27, 2016 claiming priority to Russian patent application RU 2015131038 filed Jul. 27, 2015.

FIELD OF INVENTION

The present invention is intended for use as the facilitating Insoles for high-heeled footwear on middle and high heel and can be realized in the form of the insole supplied with fastening means to a sole or in the form of the top surface of a sole for high heel shoes.

BACKGROUND

High-heeled footwear is often inconvenient during wearing, legs in it when walking are tired and sometimes even hurt. When wearing high heels body weight is distributed unevenly on a foot, the main loading is assumed by a front part of foot in this connection, there are problems which are connected with foot. It is known that the people who spend in footwear on heels much time bones of the metatarsus and fingers are deformed, for example talipes valgus foot deformation, hammertoe, and also arise other problems with the musculoskeletal system.

Nevertheless, many women regularly wear shoes on high heels as it makes their figure visually more harmonious, extends legs, makes a stylish, elegant look, conforms to dress-code requirements, makes them more attractive and increases their height.

The problem has appeared with the advent of a heel, and his mechanical influence consists in redistribution of body weight on a front part of foot.

The invention “An orthopedic Insoles for High-heeled footwear” according to the RU 2136197 patent which contains the basis with a back calcaneal and flat front parts between which the curvilinear ledge for support of the foot arch having such form that points of the top lines of the cross sections of a ledge parallel to the vertical plane passing through the centers of boat shaped and cubical foot bones lie at identical height from the lower surface of the basis is known, and the ledge is made of a soft elastic material. The invention “The system of a shoe basic insole” according to the RU 2432890 patent which contains the basic element for a middle part of foot made of conformal or compression shock-absorbing material, located in a middle part of footwear and has the convex form, a contour and height sufficient for ensuring contact and a support to the middle part of foot of the user is known to provide a roundish support the transferring loading from a fascicular part of foot of the user to its middle and heat seat regions. Very similar devices which perhaps unload a forward part of foot, but at the same time strongly curve and load the foot arch that too will create problems to the user subsequently. These inventions are given for data on the general state of the art and can not be used for opposition to the current invention.

The insoles supporting a great number of elements for foot massage, for example are known: the useful model “Massage Insole” according to the RU 125070 patent containing the elastic basis on which are placed it is dispersed cambers on which external surface needles and ledges are made; an invention “The springing insoles for a human foot, the insole and footwear including the specified lining, and a way of the specified foot lining production” according to the RU 2424900 patent where there is drawing from a great number of brows of the elements adapted for user foot massaging.

The invention “The way of a footwear insole production” under the certificate SU 1797832, which is that in a toe-cap-fasciculate part establish the support for foot fixing having the basis in the form of the arc-shaped strip made of the material having the increased friction coefficient connected with the weight of the person and heel height is known. This invention is close in fact to declared by existence of the increased friction, but doesn't solve problems of a high heel as foot fixation is carried out by the small area of the insole with the increased friction coefficient located in a toe-cap-fasciculate part, therefore and loading is perceived by a toe-cap-fasciculate part of foot, namely it also is a problem which is solved by the stated invention. Besides the increased friction even of a full-size insole won't solve a problem of a high heel as the foot located on an inclined sole in the course of the fluctuations connected with pacing, step-over will overcome the increased friction and all the same will roll down against the stop in a toe and toe-cap-fasciculate part of foot will be loaded.

SUMMARY

The insoles different coefficient of friction depending on the direction of contact effort can solve a problem.

The insoles which has the lowered friction in the direction of contact effort from a sock to a heel and the increased friction in the direction of contact effort from a heel to a sock is offered. On the flexible insole supplied with fasteners to the top part of a sole the great number of elements' appendages inclined from a toe to a heel are placed. The appendages can be executed as a: fibers, bristles, thorns, scales, cloves, scars, etc. At the effort direction from a toe to a heel, for example at instep, in passing inclined appendages are turned in by foot even stronger and don't show resistance to movement, and foot is freely displaced to a footwear back. When the person goes by foot, the minimum foot movement from back to a toe on an inclined sole lifts the appendages (against the grain) which assume loading, create the increased friction, and interfere with rolling foot to a toe. During passing the appendages will constantly displace foot to a footwear back, thus a part of loading will be distributed on all foot and load of a toe-toe-cap-fasciculate part of foot will be lowered. According to the user's leg at more uniform distribution of loading will be tired less and the probability to receive foot deformations because of carrying a heel will decrease.

The insoles can be made by formation of elastic polymers such as: the plasticized PVC, polyurethane, latex. And it can also be made of textile material with inclined pile.

BRIEF DESCRIPTION OF THE DRAWINGS

On a FIG. 1 the insole 1 pasted on an inclined sole 2 is represented. Foot 3 at the time of a step applies pressure down, and at insignificant shift to a footwear toe lifts the lodges on the insole 1 which accept loading and interfere with foot rolling down. The movement is “against the grain”.

In FIG. 2, the foot 3 is shown at the time of lifting the leg. The protruding elements (ledges) on the insole 1, when the load is reduced, return to an inclined position, they bend even more strongly and do not resist the movement of the foot to the back of the shoe. Movement is “with the grain”.

FIG. 3. The ledges can be executed in various forms and have a different inclination. Tops of the ledges can be round—zone a, pointed—zone b and c, multiple—zone d. The inclination can be big—zone b, small—zone c. Each ledge has its height with the top and its basis. The ledge top inclination is in the direction from a toe to a heel, which means that the top of the ledge is displaced relative to the middle of the basis; the direction of the displacement is from in the direction from the toe to the heel.

FIG. 4. The ledges can be executed in various forms, for example:

in the form of scars—zone a, in the form of scales or cloves—zone b, in the form of thorns—zone c, in the form of the cloves supplied with inclined micro ledges—zone d.

FIG. 5. The insoles can be made of textile material with solid pile: not cut—zone a, cut—zone b. Pile can be made of thermoplastic monothread and inclined by mangling a certain direction.

FIG. 6. A fragment of an insole of an elastic polymer is shown in an enlarged view. In the base 1, from the side of the heel, in front of the protruding elements 5, depressions 4-zone L can be made. When lifting the foot of the foot, moving to the backside, it drowns the protruding elements 5 in the indentations 4—zone a. The resistance of the insole to the movement of the foot to the back will be minimal. When the leg is lowered, the protruding elements will return to their normal position—the zone L, and then they will rise, giving the maximum resistance to the rolling of the foot in the sock—zone C.

he insoles fragment from the elastic polymer in an enlarged view is shown. In the basis 1 from a heel before the ledges 5 deepening's 4—zone b can be made. At instep, the foot, moving to a back will drown the ledges 5 in deepening's 4—zone. Insoles resistance to the foot movement to a back will be minimum. When lowering a leg the ledges will return to usual position—zone b, and further will rise, showing the maximum resistance to rolling foot to a toe—zone c. 

What is claimed is:
 1. An insole for a high heel footwear, the insole being made of a flexible material on which a plurality of protruding elements are arranged, characterized in that the protruding elements are inclined in a direction from a toe to a heel in such a way that vertices of the protruding elements are displaced in a direction from the toe to the heel relative to a middle of bases of the protruding elements.
 2. The insole according to claim 1, characterized in that there are grooves on a heel side in front of the protruding elements in the insole.
 3. The insole according to claim 1, characterized in that the protruding elements are made of villi, bristles, thorns, scales, denticles, scars. 